Centrifugal liquid separator



May 5, 1942. M. s. POTTER CENTRIFUGAL LIQUID SEPARATOR` Filed Feb. v29,1940 ow W I M lfm I /2 f 2 MQ/V r 2 f d f w a 2 f M 2 y l l J all m VfJi/v2@ 4 4R 7@ a w m 2@ Patented May 5, 1942 CENTRIFUGAL LIQUIDSEPARATOR Miles S. Potter, Waterloo, Iowa, assignor to AssociatedManufacturers, Inc., Waterloo,

Iowa

Application February 29, 194-0, Serial No. 321,514

1 Claim.

My invention relates to improvements in centrifugal liquid separators,and one object of my improvements is to provide in the rotary mechanismthereof means for stabilizing the rotation of the separator bowl,including a separable sectional shaftJ therefor having a plurality ofantifriction bearings, and having adjustable basal supporting means.

These and other improvements in the assemblage will be hereinafterdescribed and claimed,

and illustrated in the accompanying drawing.

It will be understood that various changes and improvements may be usedin equivalence in the machine, without departing from the inventionstherein or the scope of their protection as claimed. Fig. 1 is a frontalelevation of my improved centrifugal separator and its driving means,with parts thereof removed or sectioned. Fig. 2 is a top plan, on alarger scale, of the resiliently controlled connections between the Iwith removably connected basal members Id,

and also has at the right a similar pair of shod legs Ic and basalmembers le, except that the latter pair Ic are projected at a lesserangle relative to the support for the purpose of maintaining thestability of the connected motor and separator.

The base-plate Ia has a central upwardly directed sleeve 3a (see Figs. 1and 5). Referring again to Fig. 1, the numeral Ib denotes a hollowvertical standard fixed on the left-hand part of the base-plate Ia, anda housing 2a, open at the right, includes said standard, while both areintegral with and support at the top an open top cylindric housing part3 with bottom closure apertured to seat therein a cylindric housing I8for an anti-friction bearing device I9. The bottom wall of the housing 3has an aperture containing a removable screw-threaded plug I'I, and isalso apertured to seat a depending drain-tube I f for the housing todischarge below the tabular plate Ia. A separator bowl 20, shown withoutinteriorly assembled separator disks, has a part of its wall brokenaway, with the upper portion of the vertical shaft 2 extended thereinto,and said shaft traverses downwardly vertically said bearing deviceI8-I9, and its lower end part is recessed downwardly at I4.

As shown in Fig 5 sleeve 5 is removably secured in the outer sleeve 3aand secured thereto by a set-screw 4, and also by a base-plate 3b,beneath, secured by screws to the inner sleeves. A downwardly directedmember 6 with medially downwardly offset part medially apertured andinteriorly threaded, seats therethrough a short threaded shaft 'I whoseupper end traverses the member 6 and bears against the lower end of theshaft part IIa. The shaft l is threaded to seat in a lthreaded seat inthe member 6 to adjustably support the alined shaft parts II-I2 and 2. Across handle 8 mounted through the lower end of the shaft l, may beturned to adjustably support the said shaft sections and the bowl 2tabove. Immediately above the sleeve 3a a circumferentially groovedbelt-wheel I3 is fixed on the shaft part Il, and carries in its V-shapedgroove one end part of a V-belt 28` shown in cross-section in Fig. 5.

As the lower end of the upper shaft part 2 is downwardly bifurcated, atI4, it seats removably and loosely on a cross-pin I5 xed across theenlarged bearing member I2 on the lower shaft part II, permitting slightplay to the shaft 2. A short apertured lug 2| is xed on the housing 3 tothe right, and a longer lug 25 has its left-hand end xed on the rearwall 2a of the lower housing just above the member I4 and spaceddirectly below the upper lug 2l, with connecting end means therebetween,being a vertical member 23 having end lugs, of which the upper lug seatsa i fixed pin 22 in the upper angular part of said member 23, and thelower lug seats another pin, 271., whereby the member or hanger 24 maylimitedly rock to and fro. The member 23 is fixed on a connection 2m ona motor housing 25, and the motor has a depending shaft 26 upon whoselower end a belt-wheel 21 of greater diameter than the other smallerbelt-wheel I3 is mounted, both said wheels having the V-belt 28 reevedthereabout, preventing escape of the belt by reason of looseness.

I have, however, supplied additional means for keeping the V-belt tautirl' spite of wear or lengthening due thereto. This means is illustratedin Figs. l and 2 which is shown and claimed in my divisionalapplications Serial Number 362,110, filed October 21, 1940. In Fig. 2 alug 2b is xed upon one wall part 2a of the separator housing, and an arm2d has one end rockably mounted on a bolt 2c traversing the lug anddirected toward the motor casing 2T,

obliquely. A similar arm 2g has one end like wise rockably mouted on abolt 2k traversing the lug 2l xed at one end of a bar 24, which is inturn Xed on and along a similar bar 2m iixedly mounted on the motorcasing 25, above the beltwheel 21. The outer ends of the arms 2d and 2gare adjustably pivotally connected by a bolt 2e. A fixed arm 2n on theopposite end part of the bar 2li is apertured, and a short rod has oneend loosely traversing said aperture. A nut 21' is mounted adjustably onsaid rod to bear upon the rear face of the arm 2n. A coiled tensionspring 2f has bent end parts of which one is connected to the hither endof the rod 20, and the other bent end connected to vsaid pin 2e. Innormal use and position, the arms 2d and 2g are angularly disposedtoward each other as shown. It will be seen that undue vibration of themotor is dampened by reason of the action of the spring 2f on said arms,and at the same time the spring 2f exerts a resilient action upon boththe motor and the V-belt 28, tending to prevent escape of the belt fromthe V-groove in its edge in the event of wear or lengthening of thebelt. The ball bearings at opposite parts of the connected shaftelements also tend to obviate lateral vibrations of the shaft and theseparator bowl 20, when jointly rotating at high speeds, and theseparable assemblage of the shaft sections as connected at the cross-pini5 gives necessary exibility thereto in the maintenance of the shaft inits bearings and in coaction therewith.

I claim:

In a centrifugal liquid separator, in combination, a base-plate having aplurality of depending legs, and having an upwardly directed hollowstandard fixed on and at one side of the plate and terminating upwardlyin an upwardly cupped housing, cylindrical, and having a centralcircular bottom-apertured seat, and having voiset therefrom a drain pipetraversing said seat removably on the inner rim upper face olf thebottom of the housing and whose lower part depends through saidapertured seat, the inner upper part of the sleeve being offset inwardlyto provide an inner shoulder supported removably on the inner rim, saidbase-plate having a central integral upwardly directed cylindricallyhollowed part, a cylindrical liner mounted removably in said hcllowedpart and having circular upper and lower recesses therearound in itsinner wall, like ball-bearings mounted movably in said recesses, acentrally apertured plate secured coaXially and removably across thelower face of the base-plate, a cross-bar medially oiset downwardly,having its end parts secured removably dependingly across the lower faceof the base-plate and medially upwardly apertured and threadedcentrally, an axial shaft positioned within the cylindrical liner andspaced laterally therefrom and with its upper part above the linerwidened in diameter, said ball bearings being non-rotatably mounted onthe lower diminished part of the shaft, said lower part of the shaftbelow the lower bearing plate terminating above said offset cross-bar, adownwardly directed threaded stem seated rotatably in the medialapertured part oi the cross-bar to depend therefrom and to contact thelower end of said stem, a nut mounted on said threaded stem below thecross-bar for vertical adjustments of the shaft, said axial shaftwidened upper part being downwardly cupped, a rod crossing said cuppedpart and end-secured therethrough, an upper shaft section alined withthe lower shaft part and having its lower termination transverselygrooved to seat astride said rod, the upper shaft section extendingupwardly and seated axially through said upper ball bearing, U-spiingsmounted contactingly between said ball bearing and the abutting innerwall of the tubular sleeve, a liquid separator bowl mounted axially andremovably upon said oiset sleeve mounted on said bowl bottom part, andmeans mounted on the lower shaft section to rotate it at a desiredspeed.

MILES S. POTTER.

